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0 1 I'm using latest version of Google Chrome in my android. Recently, the view of Google search results have changed. I don't like this view because address is in a grey color background and search results are in full black and white . I tried all settings to figure out why this change has happened. It's really disgusting seeing this view How to go back to previous view? Here is the link for image for more clarity chrome-for-android share | improve this question edited Dec 16 at 9:57 iBug 5,635 3 24 48 as

0 A random variable X has range from $(0,a)$ . Show that $Var(X)le a^2/4$ . The given hint is to show $E[X^2]le aE[X]$ first, and use that to show $Var(X)le a^2[beta(1-beta)]$ , where $beta=E[X]/a$ . I don't know how to start. I've tried using Cheyshev's inequality but it doesn't work. Can anyone give me a hint how to start? Any concept I've been missing? probability share | cite | improve this question edited Nov 27 at 1:16 asked Nov 27 at 1:09 Yibei He